baber/WOPTO huggingface dataset:
Patent GB-1132080-A (GB)
Title: Injection mould for working cross-linking synthetic and natural materials, for example rubber
IPC: B29C45/27
Filed: 1965-12-10
Abstract: 1,132,080. Injection moulding rubber. ANKERWERK GEBR. GOLLER. 10 Dec., 1965 [19 Dec., 1964], No. 52552/65. Addition to 1,027,534. Heading B5A. Synthetic or natural rubber materials injected through runners 4, 5 as described in the Parent Specification 1,027,534, are maintained liquid while in the runner 5 during vulcanization of the material in a mould 7, by means of a hollow cooling pin 17 spaced from the inner walls of the runner 5 and through which cooling water circulates from an entry 20 to an exit 21. The cooling pin 17 has a plane, pointed or rounded end 18 which extends to the immediate vicinity of an injection opening 6 leading to the mould cavity 7. The pin 17 is detachably fixed to the mould half 2 and the temperature around the element is measured through a port 22. Vulcanization is effected by heaters 9-12. Cooling bores 15 and thermal barriers 16, 25 are provided in the mould. The moulded article remains attached to the mould part 1 by reason of small entrainment devices 13 and is ejected by means of an ejector pin 14 with or without the assistance of compressed air.
Patent GB-1383939-A (GB)
Title: Battery electrolyte composition
IPC: H01M12/08
Filed: 1972-11-14
Abstract: 1383939 Substituted sulphonamides OMF CALIFORNIA Inc 14 Nov 1972 [18 Nov 1971] 52616/72 Heading C2C [Also in Divisions C3 and H1] The compound is prepared by reacting 2 moles propane sultone with a 20 wt. per cent aqueous solution containing 1 mole of the sodium salt of at 50‹ to 60‹ C. and subsequently evaporating to dryness, extracting the product with glacial acetic acid and precipating with acetone.
Patent GB-1428957-A (GB)
Title: Electrolytic recovery of lead
IPC: C25C5/00
Filed: 1972-11-17
Abstract: 1428957 Electrowinning or electrolytic recovery of lead IMI REFINERY HOLDINGS Ltd 8 Jan 1974 [17 Nov 1972] 53187/72 Heading C7B In the electrolytic recovery of lead from ore or waste containing lead sulphate, oxides, carbonate or sulphide using an akaline electrolyte e.g. NaOH, the lead compound is made cathodic and is electrolytically reduced to metallic lead. The material to be treated may be in the form of particulate ore or of paste from acid/lead batteries whilst still adhering to the metal supports, and may be supported in steel, Ti or Ni baskets which form the cathode; or an endless belt-type cathode may be used. The lead obtained may be in powder form or may be compacted and melted. The anode may be of platinized titanium mesh.
Patent GB-1195648-A (GB)
Title: Isoprene Purification Process
IPC: C07C7/08
Filed: 1968-11-11
Abstract: 1,195,648. Isoprene. JAPANESE GEON CO. Ltd. 11 Nov., 1968 [11 Nov., 1967; 15 July, 1968], No. 53361/68. Heading C5E. Isoprene is freed from cyclopentadiene, e.g. in the recovery of isoprene from C 5  fractions, by extractive distillation under anhydrous conditions using as solvent an N-alkyl fatty acid amide, e.g. dimethyl formamide, so as to extract cyclopentadiene into the solvent, the solvent then being regenerated by heatstripping in one or more zones, of which the or at least the last such zone is operated under subatmospheric pressure at a temperature below 140‹ C. Two stripping zones are preferably employed, the first under atmospheric pressure and the second under said subatmospheric pressure. If the feed is a C 5  mixture it may, before treatment as above, be subjected to (a) a first extractive distillation using a similar solvent so as to extract isoprene and hydrocarbons more soluble than isoprene from less soluble hydrocarbons such as pentenes and pentanes, followed by (b) ordinary distillation of the extracted isoprene to remove a major proportion of cyclopentadiene and other higher boiling hydrocarbons therefrom. Isoprene product may be further fractionated to remove isopropyl acetylene and butyne-2. In an example, a process comprising all of the above steps results in isoprene of 98À18 mol. per cent purity, the main impurity being 1À42% 2-methyl butene-2.
Patent GB-1404939-A (GB)
Title: Reference devices
IPC: G01C9/12
Filed: 1971-11-18
Abstract: 1404939 Measuring deviations from vertical SPERRY RAND Ltd 20 Nov 1972 [18 Nov 1971] 53482/71 Heading G1N [Also in Division F3 ] Apparatus for measuring deviations from the vertical, for example in a tank gun control, comprises a flexible rod 4, Fig. 1, carrying an armature 5 of a differential transformer 6. When the rod is vertical the transformer coupling is such that there is no output, but when the apparatus tilts the mass 3 at the end of the rod bends it, altering the armature position and hence the coupling to give an output. Another transformer orthogonal to that shown at 6 is also provided, so that both magnitude and direction of tilt are measured. The rod, armature and mass 3 are within a housing filled with a silicone damping fluid, an expansion device allowing the fluid to expand with temperature rises. The housing also carries the associated circuitry, Fig. 3 (not shown). The circuit of Fig. 4 is for a two axis sensor. Windings 7 are series connected primaries supplied with 400 Hz, while windings 8 are series connected secondaries connected to respective X and Y axis rectifiers 21 and amplifiers 17. Temperature compensation of the circuit is effected by thermistors 19. The output signals from the amplifiers may be connected to a computer to control the gun-fire system of a tank.
Patent GB-1487859-A (GB)
Title: Water soluble ternary cellulose ethers
IPC: C09D7/00
Filed: 1974-12-13
Abstract: 1487859 Hydroxyethyl hydroxypropyl methyl cellulose DOW CHEMICAL CO 13 Dec 1974 [14 Dec 1973] 53920/74 Headings C3A and C3F Hydroxyethyl hydroxypropyl methyl cellulose soluble in water and having a methoxyl content of 6 to 12À5 wt. per cent, a hydroxypropoxyl content of from 14 to 32 wt. per cent, a hydroxyethoxyl content of from 10 to 22 wt. per cent, a total D.S. greater than 1À5 and a thermal gel point greater than 70‹ C. is disclosed. It is prepared in the following stages: (i) Treating 1 part cellulose with 0À35 to 0À75 parts NaOH as a 35-70% aqueous solution at room temperature. (ii) Blending the alkali cellulose with 0À4 to 1À5 parts methyl chloride and 0À75 to 2À0 parts propylene oxide per part cellulose and heating the blend to form 40‹ to 50‹ C. (iii) Adding from 0À5 to 1À7 parts ethylene oxide per part cellulose over a period of from 1À5 to 4 hours in the absence of air at a temperature of 40‹ to 60‹ C.; all parts being by weight. The product is used as a thickener in acrylic latex and polyvinyl acetate paints of conventional ingredients.
Patent GB-1184616-A (GB)
Title: Potato Harvester.
Inventor: BONELLA ANDREW GRAY
IPC: B07B13/08
Filed: 1967-11-28
Abstract: 1,184,616. Potato harvester. A. G. BONELLA. 28 Nov., 1968 [28 Nov., 1967], No. 54045/67. Heading A1F. The potato drills are lifted simultaneously by two reels 1, 3 which co-operate with concave grids 2, 6 to pass the lifted drill on to a conveyer 4 from which it drops on to a brush 5 with inclined bristles 8 which allow stones to pass through but direct potatoes on to a discharge elevator. The separated stones and potatoes pass along conveyers arranged side by side to facilitate hand sorting.
Patent GB-1194439-A (GB)
Title: Light-tight Containers
Inventor: FLEMING PAUL JAMES
IPC: G03B17/30
Filed: 1968-11-15
Abstract: 1,194,439. Film cartridges. EASTMAN KODAK CO. Nov. 15, 1968 [Nov. 20, 1967], No. 54235/68. Heading G2A. A light-tight container such as a roll-film cartridge has a pair of lips 8, 12 defining an elongate passage communicating with the interior 28 of the cartridge, and a flap 18 attached to the lower lip along a single transverse line 20. The flap may be of a flexible layer of polyurethane foam laminated to a facing layer of nylon cloth. Since the flap is attached only at 20, the inner and outer edges 24, 26 are free, so that the flap can make better contact with the film strip 4, thus increasing its efficiency as a light-lock. A pad 14, 16 of similar construction to the flap may be attached to the upper lip 8. Figs. (not shown) 3-5 are similar arrangements but having different rear configurations for the pad, and also being attached to the lower lip at the very front edge 22 of the lower lip. In Fig. 5 (not shown) the upper pad is eliminated altogether. In Fig. 2 the flap 42 is formed as a single piece of a plastics material fixed permanently in a groove 44 in the lower lip.
Patent GB-1365471-A (GB)
Title: Bladeless pump impeller
IPC: F04D13/06
Filed: 1971-11-23
Abstract: 1365471 Agitating and aerating liquids TAIT INC 23 Nov 1971 [23 Nov 1970 20 Oct 1971] 54472/71 Heading B1C [Also in Divisions B7 and Fl]  A bladeless impeller for agitating and aerating liquids comprises a tubular body 43, 44 defining a circular inlet 32 at one end and an oblong outlet 34 at the other end, the maximum dimension of the outlet being greater than the inlet diameter. The pumping channel formed by the walls 43, 44 has a substantially uniformly increasing oblong cross-section in the plane of rotation from the inlet to the outlet. The impeller is driven by a submerged motor 52, Fig. 5, to circulate water in a tank 51. Air is supplied to the impeller inlet through a pipe 54. In a modification (Fig. 17 and 21 not shown), the skirts 46 are omitted to increase the agitating action of the impeller. The impeller may be used as a surface aerator and may then be supported by floats, (see Figs. 6-11, not shown).
Patent GB-1158958-A (GB)
Title: Method and Apparatus for Making Glass.
IPC: C03B18/06
Filed: 1967-11-30
Abstract: 1,158,958. Flat glass manufacture. NIPPON SHEET GLASS CO. Ltd. 30 Nov., 1967 [5 Dec., 1966], No. 54524/67. Heading C1M, In the manufacture of flat glass in ribbon form by delivery of molten glass 1 on to a bath 3 of molten metal, the glass 1 is initially confined and allowed to spread out on the bath 3 only to the extent defined by angularly disposed, splayed surfaces 11 of members 5 of a gas-permeable, porous refractory material, while a pressurized gas is blown out from-the surfaces 11 against the edges 10 of the glass, the molten glass then being permitted to flow laterally outwardly unhindered to the limit of its free flow to form a ribbon 1<SP>1</SP> of glass. As shown, each member 5 is formed with a cavity 6 parallel to the surface 11 and a conduit 7 is used to conduct gas under pressure to the cavity. The gas used is preferably non- oxidizing, e.g. nitrogen. The conduit 7 is surrounded by a conduit 9 which leads to a cooling box 8 secured along the top of member 5 and a conduit (9<SP>1</SP>) removes the cooling water. The member 5 is preferably of graphite. In a modification, the surfaces 11 run parallel before splaying out. Reference has been directed by the Comptroller to Specification 1,112,071.
Patent GB-1254448-A (GB)
Title: Making a migration imaging member
IPC: G03G13/14
Filed: 1968-11-22
Abstract: 1,254,448. Laminates. XEROX CORP. 22 Nov., 1968 [24 Nov., 1967], No. 55548/68. Heading B5N. [Also in Divisions B2 and H1] A layer of softenable material having embedded therein a layer of particles is prepared by (a) loading on to a donor surface a substantially uniform layer of particles, said particles consisting essentially of particles having an average size between 0À01 and 2À0 microns, with said layer of particles of thickness not greater than 5À0 microns; (b) providing a supporting substrate having a receiver layer of electrically insulating softenable material, of thickness between ¢ and 16 microns; (c) uniformly pressing the loaded donor surface in non-slipping contact against the surface of the softenable layer by advancing said loaded donor and said softenable layer at the same rate and in the same direction between pressure rollers with pressures between 80 and 1100 p.s.i.; and (d) separating said donor surface and said softenable layer, thereby transferring a uniform layer of particles to the softenable layer whereby a fracturable layer of particles is embedded at the surface of the layer of softenable material. The softenable material may be thermoplastic and at least one of said pressure rollers is preferably heated to between 50 and 200‹ C. After said heat-pressure step the softenable layer may be cooled to between 10 and 30‹ C. before the separating step. The particles preferably comprise a photoconductor.
Patent GB-1443809-A (GB)
Title: Earthing switch arrangement
IPC: H02B13/02
Filed: 1973-11-30
Abstract: 1443809 High voltage switchgear; earthing switches SIEMENS AG 30 Nov 1973 [30 Nov 1972] 55751/73 Heading H1N A metal-enclosed switchgear chamber 8a contains three conductors R, S, T, supported on insulators 4 and symmetrically disposed around the periphery of the chamber in a common plane, transverse to the longitudinal axes of the conductors, are three earthing switches 14 each having individual drive means 13 and a displaceable conductive rod 10 operable to connect an associated conductor to the enclosure at which point the conductors are provided with contacts 11 and shields 12. The chamber is filled with SF6 gas at 2-3 bars pressure and forms part of a conventional double-bus switchgear installation (Fig. 1, not shown) with selector isolators (7), CT and/or VT chamber (16a), circuit breaker chamber (24) and a cable box isolating switch chamber (17) containing a similar set of earthing switches 14 as described. The earthing switch rods 10 may be displaceable by means of a common drive.
Patent GB-1358117-A (GB)
Title: Vehicle anti-skid braking system
Inventor: PERUGLIA M
IPC: B60T8/46
Filed: 1972-12-05
Abstract: 1358117 Anti-skid braking systems FIAT SpA 5 Dec 1972 [11 Dec 1971] 56127/72 Heading F2F A vehicle anti-skid braking system has a pressure source which supplies a first group of brake actuators via anti-skid pressure modulators, and an ancillary pressure source supplying fluid to a second group of actuators via a relay valve controlled by the fluid pressure of the first source which is connected to the valve via an automatic metering device, comprising means producing a throttle in fluid flow therein as a result of a reduction in pressure at its outlet with respect to its inlet, and a solenoid valve controlled by a wheel rotation detector, and having its exhaust coupled to a discharge throttle device, including means for providing different flow rates therethrough in accordance with the pressure at its inlet. The system may be hydraulic or pneumatic; as shown a pneumatic system has an accumulator 10 feeding the automatic metering device 24 and front wheel brake actuators 16, controlled by anti-skid circuits 19, 18, via a pedal operated valve 12. The device output is connected to the relay valve 30 via a three-way two-position solenoid valve 28 controlled by an anti-skid control device 29 detecting rotation of the wheels associated with the relay valve output, and exhausting to the discharge throttle device 40 which discharges to atmosphere the fluid freely, or through a throttle if the input pressure is greater than a predetermined threshold value. When pressure fluid is supplied to the relay valve 30 by the source 10, depending on the anti-skid control system formed by the parts 24, 28, 40, a piston 305 thereof moves downwardly to close a valve member 312 against a port 304 communicating to atmosphere and then to open a valve member 311 to allow fluid from the ancillary source 34 to flow to the second group of actuators 36 for the rear wheels of the vehicle or for a trailer, the pressure at the actuators depending on the pressure at the valve inlet 301.
Patent GB-1168877-A (GB)
Title: Casing Fastening Machine with Adjustable Crimping Die
Inventor: SCHROEDER PAUL GEORGE KARL
IPC: B65B51/04
Filed: 1967-12-11
Abstract: 1,168,877. Angular bending. P. G. K. SCHROEDER. 11 Dec., 1967 [10 Feb., 1967], No. 56273/67. Heading B3E. [Also in Division B8] In a machine for crimping a staple around the gathered neck of a bag the anvil 37 against which the staple is driven by a driver 17 to crimp it, can be turned about a shaft 34 to present a surface suitable for a different size of bag. In the form illustrated the anvil is provided with several surfaces and is held in any of its positions of adjustment by a spring biased pawl 55 which can be released manually. The anvil 37 is turned by a screwdriver engaging in a slot which also serves as an index to indicate which surface is positioned for use. The staple is guided through a sleeve 21 mounted for sliding movement at the same time as the driver 17 by a linkage connection 26, 23 to the ram 14 driving the driver. The bag neck is gathered by a surface 50 on a spring-biased member 35 turned about a pivot 46 by a connection 34 to a guide 41 driven horizontally by a link 39 connected to the sleeve 21. The neck of the crimped bag is cut off by a guillotine 66 operated by a ram 64 mounted for ready detachment. The machine is controlled by a manual valve 72.
Patent GB-1223030-A (GB)
Title: Grinding machines
Inventor: BLAKESLEY LESLIE FRANCIS
IPC: B24B47/04
Filed: 1968-11-28
Abstract: 1,223,030. Grinding. L. F. BLAKESLEY. 19 Nov., 1969 [28 Nov., 1968], No. 56426/68. Heading B3D. A machine for grinding cutting cylinders and bottom blocks of lawn mowers, and tools such as chisels, milling cutters and guillotine blades, comprises means 3 for supporting a workpiece to be ground, a grinding head 4, and drive means consisting of one or more driven elongate elements 18 arranged to follow a path or paths having two parallel or substantially parallel rectilinear portions along which the element or elements move(s) in opposite directions, and a carriage 20 which is connected to the grinding head and has means 30 for engaging the element or one of the elements along a selected one of the portions so as to traverse the carriage and grinding head in the selected direction. The grinding head has a wheel or the like G carried by a motor angularly adjustable on a plate 8 which is vertically adjustable by a hand wheel 4a on a carriage 5 having rollers 13, 15 engaging a slide 6. The workpiece may be mounted in a pair of stocks carried by a slideway 3 at the front of the machine. An arm 21 depends from the carriage 5 and beneath the bed of the machine and is connected to the carriage 20 having a roller 22 engaging the bed. The element 18 is in the form of an endless belt entrained over pulleys 17, 19, one of which is driven by a motor. A pair of levers 24, 25 are mounted on pivots 26, 27 on the carriage and each lever is associated with a fixed lever 28, 29, all the levers being provided with a clamping pad 30. An actuating lever 31 is disposed between the levers 24, 25 on a pivot 32 and has a pivoted end engaging a roller 34 carried by a linkage 35 movable about a pivot 36 by a control lever 38, the roller being urged by a spring 37 against the pointed end of the lever which has abutments 33 for selectively engaging the levers 24, 25. In the position shown in Fig. 5, the roller acts on lever 31 which in turn presses lever 24 towards the fixed lever 28 so that the pads 30 on those levers grip the belt 18 and cause movement of the carriage 20 and grinding head in one direction. Engagement of the control lever 38 with a stop 39 causes the actuating lever 31 to snap over so that the pads on levers 28, 29 grip the belt to move the carriage and head in the reverse direction. A further lever 42 is provided for rendering the actuating lever in operation.
Patent GB-1173379-A (GB)
Title: Method and Apparatus for Making Measurements Along Surfaces
IPC: G01B7/04
Filed: 1967-12-13
Abstract: 1,173,379. Selective signalling. LOGIC SYSTEMS Inc. 13 Dec., 1967 [13 Dec., 1966], No. 56548/67. Heading G4H. The length of a travelling steel strip is measured by a pair of write heads 36, 42 and a pair of associated read heads 38, 44 scanning respective longitudinal tracks on the strip, heads 42, 44 being spaced by twice the amount that heads 36, 38 are spaced whereby channel 36, 38 accumulates errors introduced by circuitry delays twice as fast as channel 42, 44 accumulates errors, and each time the two channels pass through synchronism an additional pulse is added to length counter 78. A further write head 40 midway between heads 42, 44 serves to avoid drop-out errors, heads 40, 42 being simultaneously energized by alternate pulses picked up by head 44. Passage through synchronism of the two channels is detected by OR gate 82, bi-stable 84 and AND gate 86, the additional pulse being fed to counter 78 through OR gate 76. A similar circuit 96, 98, 100 is used for detecting drop-out errors and causes writing of a new mark via OR gates 108, 60 and 62.
Patent GB-1245818-A (GB)
Title: Erosion control
Inventor: PILAAR JAN CAREL
IPC: A01G13/02
Filed: 1968-11-29
Abstract: 1,245,818. Laminates. J. C. PILAAR. 29 Nov., 1968 [22 Dec., 1967; 3 Jan., 1968; 23 Jan., 1968; 20 March, 1968], No. 56730/68. Heading B5N. [Also in Division E1] An erosion controlling surface comprises one or more layers of flexible liquid-permeable sheets 10 on which are placed blocks of concrete, or other material of the form shown in Fig. 1, so that the blocks abut each other. The blocks may be of concrete, plastics, brick, compressed garbage &c., and plants may grow in the drainage channels 16, 12, 14. The sheet is characterized in that it will permit water to flow through it but not soil particles. The blocks may have flat upper surfaces, sheets may be attached to the upper surfaces of the blocks, two layers of blocks with a sheet sandwiched between them may be used. The blocks may be attached to the sheets by glue, pins, or cables. The complete system may be formed in prefabricated sections, or made in situ.
Patent GB-1242238-A (GB)
Title: Apparatus for inserting runners into curtain rails
Inventor: BAYS LOUIS
IPC: A47H13/00
Filed: 1968-11-30
Abstract: 1,242,238. Suspending curtains. L. BAYS and H. EGGER. 30 Nov., 1968, No. 56958/68. Heading A4B. Apparatus for feeding runners 3 on to a fixed curtain rail 1, Fig. 4, comprises a central body portion H 1  which detachably receives in one end a vertical transfer rail T 1  and is fitted at its opposite end in an opening 1<SP>1</SP> in the rail 1, the body portion H 1  having a spring tongue 18 which engages one end of the opening 1<SP>1</SP> and guide tongues 14 along which the runners pass to or from the rail 1. As shown, the rail 1 and transfer rail T 1  are of box section. In another embodiment, Figs. 12, 15, the rail 30 and transfer rail T 2  are of I-section and the body portion H 2  is formed by a rail part 33 riveted at 35 to a sleeve part 34. The rail part 33 has a narrow flange 37 on which the runners 32 are guided and a wider flange which extends into two tongues 40 engaged between spring tongues 45, 46 on the sleeve 34. The spring tongues 45, 46 secure the body H 2  to the entry opening 30a of the rail 30.
Patent GB-1351978-A (GB)
Title: Synchronization device for motor vehicle change-speed gearboxes
IPC: F16D23/02
Filed: 1971-12-09
Abstract: 1351978 Positive clutches DAIMLER-BENZ AG 9 Dec 1971 [15 Dec 1970] 57247/71 Heading F2C A synchronization device, having a gearshift sleeve 10 and synchronizing rings 11 with radially inward projections 12 at whose ends annular springs 15 are supported has the conical surface 16 of the gear rim 13 formed with two slopes 18 and 17 so that, on initial movement of the gearshift sleeve 10 the axial force which produces friction between sleeve and ring is increased over that axial force (caused by slope 17) experienced after synchronization. The slope 18 is positioned such that when the locking faces of ring 11 and rim 13 (not shown) prevent the further movement of the sleeve, the spring 15 is positioned on the slope.